configure: Fix detection of libdir in ldconfig configuration

[notmuch] / configure

diff --git a/configure b/configure
index bbf30cd51c92ad0856a1e4eb5692500a973af5b0..cf525c9f6a0fc6a664d1918d001918c05e12363b 100755 (executable)
--- a/configure
+++ b/configure
@@ -355,17 +355,30 @@ elif [ $uname = "Linux" ] ; then
     printf "Linux\n"
     platform=LINUX
     linker_resolves_library_dependencies=1
+
+    printf "Checking for $libdir_expanded in ldconfig... "
     ldconfig_paths=$(/sbin/ldconfig -N -X -v 2>/dev/null | sed -n -e 's,^\(/.*\):\( (.*)\)\?$,\1,p')
     # Separate ldconfig_paths only on newline (not on any potential
-    # embedded space characters in any filenames).
+    # embedded space characters in any filenames). Note, we use a
+    # literal newline in the source here rather than something like:
+    #
+    #  IFS=$(printf '\n')
+    #
+    # because the shell's command substitution deletes any trailing newlines.
     OLD_IFS=$IFS
-    IFS="$(printf '\n')"
+    IFS="
+"
     for path in $ldconfig_paths; do
        if [ "$path" = "$libdir_expanded" ]; then
            libdir_in_ldconfig=1
        fi
     done
     IFS=$OLD_IFS
+    if [ "$libdir_in_ldconfig" = '0' ]; then
+       printf "No (will set RPATH)\n"
+    else
+       printf "Yes\n"
+    fi
 else
     printf "Unknown.\n"
     cat <<EOF